Which symbol would best replace the question marks below? 20 ? 26? 45? 69 ? 85 ? 92 a. > b. = c.

Is the open sentence 5x-2=3x+2 true when x=2? justify your answer.

The function a represents the cost of manufacturing product a, in hundreds of dollars, and the function b represents the cost of manufacturing product b, in hundreds of dollars. a(t) = 5t + 2 b(t) = 7t - 2t +4 find the expression that describes the total cost of manufacturing both products, a(t) + b(t). a. 7t^2 - 7t + 2 b. 7t^2 + 3 +6 c. 7t^2 + 7t - 6 d. 7t^2 - 3t + 6

Is there an x intercept in the equation 60*1.15^x